Device for applying powdery material to floor coverings



March 24, 1953 2,632,583

W. M. ALLEN DEVICE FOR APPLYING POWDERY MATERIAL TO FLOOR COVERINGS Filed May 12, 1948 o 26 o i 0 o o o o o o o o o o o o 4 26 27 o c o o o a o o o o a o o o o a F 4 I mmvron MLL/HM M 141.45.

' ATTORNEYS.

Patented Mar. 24, 1953 DEVICE FOR APPLYING POWDERY MATE- RIAL TO FLOOR 'COVERINGS -Wi;lliam M. Allen, Glendale, Ohio, assignor to Model Grafters, Inc., Hamilton, .Ohio,.a corpo- V ration of Ohio Application May 12, 1948,.St3rial NO. 26554.

be understood that I mean to include any finely wdivided solid material where it can be in the form of fine flakes, granules or the like.

Such dry cleaning products are usedby being scattered over the rug r carpet to be cleaned and working the material inthe nap, and by removing the material after a-predetermined time interval with a vacuum sweeper.

The great diiiiculty with the use of this materialis getting an even distribution thereof over the m or carpet and ettin it thorou y worked into the rug or carpet.

It is therefore an object of my present invention to provide a device for the purpose of applying such powdery material and working it into a rug or carpet, whereby the material is evenly distributed and whereby it is thoroughly worked in.

It is another object of my invention to provide a device as outlined above Which is easy to use in that it is operated in a manner similar to a carpet sweeper.

It is a further object of my invention to provide an inexpensive device which is simple and inexpensive to manufacture which will require practically no maintenance and which will be easy to refill when necessary.

These and other objects of my invention which I shall discuss in more detail hereinafter, or which will be apparent to one skilled in the art upon reading this specification, I accomplish by that construction and arrangement of parts of which I shall now describe an exemplary embodiment.

Reference is made'to the drawings forming a part hereof and in which Figure 1 a side elevational view of the device.

Figure 2 is a rear elevational View of the same.

Figure 3 is a plan'view of the same.

Figure 4 is a cross-sectional view on an en larged scale taken on the line 44 of Figure 1, and

Figure 5 is a cross-sectional view taken on the line 5-5 of Figure 3.

Briefly, in the practice of my invention I provide a frame in which I mount a pair of brushes 2 Claims. (01. 222-169) and a rotatable foraminous cylinder. The frame may comprise the backs of the brushes themselves together with suitable strap material for securing them together. Thus, I have indicated brushes having the backs ll! of wood or the like, and the bristles H. Frame members l2 and 13 which may be of any suitable material are secured to the backs l9 by means of screws or the like to provide a generally rectangular frame with the two brushes constituting opposite sides thereof.

Substantially central of the members l2 and I3 I provide depending cars 14, one on each side, and these depending ears may be suitably rabbeted as best seen in Figure 4, to provide for a smooth outer surface with the strap members 12 and I3. To each of the depending ears .l-l there is secured a bearing stud and the studs are of slightly different configuration. The left-hand stud I5, as seen in i ure 4, is provided with a bearing portion, a tapered portion l6 and a reduced diameter portion H, which extends through a suitable perforation in the member Hi. The end of the portion I l is then riveted over as indicated at l8 whereby the stud is secured to the frame member [4.

The stud l9 at the right-hand side of Figure 4 is secured to its frame member 14 in the same manner as indicated at I! and I8, but the major portion of the stud is of cylindrical form.

The foraminated cylinder is indicated generally at 2!) and it is provided with the end caps 2! and 22. The cap 2| is secured to the cylinder 20 in any suitable manner as by soldering, spot welding or press fitting. The cap 22 is detachable from the cylinder. Each of the end caps is provided with a perforation 2| :1 for the passage of the studs l5 and I9 respectively. Each stud is also provided with a small compression spring 23 between the respective end cap and the respective frame member I l. The end cap 22 is retainedon its stud 19 by a cotter pin, or the like, 24.

It will now be clear that if it is desired to fill the cylinder 20, the cylinder may be bodily axially moved toward the left of Figure 4 against the compression of the spring, whereupon the cylinder is detached from the cap 22 since the latter is retained on the stud I9 by the cotter pin 24. Then, as best seen in Figure 5 in broken lines, the cylinder 20 may be moved out at an angle by virtue of the taper or reduced diameter portion It. It will be clear that instead of moving the cylinder bodily to the left of Figure 4 for disengagement from the cap 22, the cap 22 may be moved toward the right against its spring 23, as also shown in broken lines in Figure 5.

The number of holes in the cylinder, their spacing and their diameter, will of course vary with the material being used. For the ordinary pow dered dry cleaning material currently available, I have found a suitable hole diameter to be about and with a cylinder 3" in diameter and long I have found that 16 rows of 12 holes per row work very .well. The holes could, of course, be non-circular.

For moving the device back and forth over the rug or carpet I provide it with a handle member indicated generally at 25, and having a bail-like portion 26, the inturned ends 21 of the bail-like portion 26 are pivotally mounted in the depending ears I 4 below the axis of the cylinder, that is, below the studs and I9. I have found that the device works best when the bail-like portion is provided with a bend as at 28 of about 30 so that the portion 25 makes an angle to the horizontal about 30 less than the portion 26.

With the construction shown, I have found that when the device is pulled toward the user after a forward motion, it tends to drag on the brush nearest the user, thus raising the cylinder off the rug so that it no longer rotates. In this way I achieve a working-in by the brush without excessive dispensing action by the cylinder.

The mechanism for opening the cylinder for filling purposes may be varied considerably without departing from my invention.

It will be clear that numerous modifications in my device may be made without departing from the spirit of my invention, and I therefore do not intend to limit myself except as set forth in the following claims. '7

Having now fully described my invention, what 4 I claim as new and desire to secure by Letters Patent is:

1. In a device for applying powdery material and working it into floor coverings, comprising a frame provided with axially aligned bearing studs; a foraminous cylinder, end caps for said cylinder mounted on said studs, one of said end caps being secured to said cylinder and the other end cap being detachable therefrom, each end cap being rotatably secured to its bearing stud, each of said studs being provided with a spring between said frame and the respective end cap, whereby said cylinder may be moved axially away from said detachable end cap for refilling of said cylinder.

2. A device according to claim 1, in which that bearing stud on which the secured end cap bears is of reduced diameter adjacent said frame, whereby when said cylinder is moved axially away from said detachable end cap, said cylinder may be swung outward for ready filling.

WILLIAM M. ALLEN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

